mirror of
https://github.com/Kitware/CMake.git
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8b1257e7bf
Remove libuv usage from CMake debugger. Libuv has an async io model and cppdap uses a sync model, so an extra thread and a buffer copy were necessary to match semantics. In order to eliminate those costs this commit implements the IO using platform specific APIs.
82 lines
1.9 KiB
C++
82 lines
1.9 KiB
C++
/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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file Copyright.txt or https://cmake.org/licensing for details. */
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#pragma once
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#include "cmConfigure.h" // IWYU pragma: keep
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#include <cstddef>
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#include <future>
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#include <memory>
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#include <string>
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#include <cm3p/cppdap/io.h>
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#include <sys/un.h>
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#include "cmDebuggerAdapter.h"
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namespace cmDebugger {
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#ifndef _WIN32
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class cmDebuggerPipeConnection_POSIX
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: public dap::ReaderWriter
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, public cmDebuggerConnection
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, public std::enable_shared_from_this<cmDebuggerPipeConnection_POSIX>
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{
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public:
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cmDebuggerPipeConnection_POSIX(std::string name);
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~cmDebuggerPipeConnection_POSIX() override;
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void WaitForConnection() override;
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bool StartListening(std::string& errorMessage) override;
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std::shared_ptr<dap::Reader> GetReader() override;
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std::shared_ptr<dap::Writer> GetWriter() override;
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// dap::ReaderWriter implementation
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bool isOpen() override;
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void close() override;
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size_t read(void* buffer, size_t n) override;
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bool write(void const* buffer, size_t n) override;
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// Used for unit test synchronization
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std::promise<void> StartedListening;
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private:
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void close_listen(); // release listen resources
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std::string const PipeName;
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sockaddr_un addr;
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int listen_fd = -1; // listen fd
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int rw_pipe = -1; // rw fd
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};
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using cmDebuggerPipeConnection = cmDebuggerPipeConnection_POSIX;
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class cmDebuggerPipeClient_POSIX
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: public dap::ReaderWriter
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, public std::enable_shared_from_this<cmDebuggerPipeClient_POSIX>
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{
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public:
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cmDebuggerPipeClient_POSIX(std::string name);
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~cmDebuggerPipeClient_POSIX() override;
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void WaitForConnection();
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bool isOpen() override;
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void close() override;
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size_t read(void* buffer, size_t n) override;
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bool write(void const* buffer, size_t n) override;
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private:
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std::string const PipeName;
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int rw_pipe = -1;
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};
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using cmDebuggerPipeClient = cmDebuggerPipeClient_POSIX;
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#endif // !_WIN32
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} // namespace cmDebugger
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